How can I edit certificates in Keychain Access on MacBook Air?

omegahelix wrote:

I want to set a self-signed certificate as "trusted" in Keychain Access (so I can browse a server on my LAN without constant warnings). I open Keychain Access, double-click on any certificate, it opens and then immediately closes itself. This means I cannot edit anything about the certificate. Certificates in question are in the login->Certificates section. I'm using a freshly restarted M1 Macbook Air M1 (2020) with OS 15.4.1.

[Re-Titled by Moderator]

see if there is anything here—

Create self-signed certificates in Keychain Access on Mac - Apple Support

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omegahelix wrote:

I was able to solve it by doing "Reset Default Keychains" in Keychain Access settings

and then adding the certificate authority (CA) certificate from my server to Keychain Access.

Good computing omegahelix !

It is an interesting resolve:

Does this effect (ie lose) all stored passwords in the new Passwords.app (?) That would be quite the tradeoff...

omegahelix wrote:

Thanks for your help. Yes, it does clear the "Default Keychains -> login" items but despite what it says it didn't seem to clear the iCloud ones. I had to re-login to my iCloud account for my Mac.

I use a different password manager but those who use the Keychain may want to tread carefully.

Thanks omegahelix— very helpful.